Radiological impact assessment of natural radioactivity in soil and water in Cape Coast North, Central Region of Ghana.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Radiation protection dosimetry Pub Date : 2024-09-19 DOI:10.1093/rpd/ncae188

Ruth Araba Tawiah Annan, Moses Jojo Eghan, Joseph Kwabena Amoako, Francis Otoo, Dennis Kpakpo Adotey, Irene Opoku-Ntim, Charles Kansaana, Prince James Adeti

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Abstract

The objective of the study is to evaluate natural radioactivity and its radiological impact on the health of the populace within Cape Coast North. Soil and water samples were taken and analysed using a high purity germanium (HPGe) detector. Results for the average activity concentrations of 226Ra, 232Th, and 40K in soil samples range from 15.0 to 60.8 Bq/kg with a mean of 20.9 ± 7.2 Bq/kg, 16.3 to 97.2 Bq/kg with a mean of 43.8 ± 2.4 Bq/kg, and 4.7 to 411.4 Bq/kg with an average of 140.6 ± 4.2 Bq/kg, respectively. The absorbed dose rate in air and outdoor annual effective dose to the public were estimated to be 46.6 nGyh-1 and 0.1 mSv, respectively, which fell below the recommended average. The average activity concentrations of 226Ra, 232Th, and 40K in water samples were 1.4, 0.4, and 1.2 Bq/L, respectively. The annual effective dose is 0.4 mSv, which is greater than the WHO recommended level of 0.1 mSv/y.

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加纳中部地区海岸角北部土壤和水中天然放射性的辐射影响评估。

这项研究的目的是评估天然放射性及其对海岸角北部居民健康的辐射影响。采集了土壤和水样本，并使用高纯锗（HPGe）探测器进行了分析。土壤样本中 226Ra、232Th 和 40K 的平均放射性浓度分别为 15.0 至 60.8 Bq/kg（平均值为 20.9 ± 7.2 Bq/kg）、16.3 至 97.2 Bq/kg（平均值为 43.8 ± 2.4 Bq/kg）和 4.7 至 411.4 Bq/kg（平均值为 140.6 ± 4.2 Bq/kg）。公众在空气中的吸收剂量率和室外全年有效剂量估计分别为 46.6 nGyh-1 和 0.1 mSv，低于建议的平均值。水样中 226Ra、232Th 和 40K 的平均放射性浓度分别为 1.4、0.4 和 1.2 Bq/L。年有效剂量为 0.4 mSv，高于世界卫生组织建议的 0.1 mSv/年的水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.